SMALL-SIZE INSTANTON CORRECTIONS TO THE TAU-HADRONIC WIDTH

被引：18

作者：

NASON, P ^{[1
]}

PORRATI, M ^{[1
]}

机构：

[1] NYU, DEPT PHYS, NEW YORK, NY 10003 USA

来源：

NUCLEAR PHYSICS B | 1994年 / 421卷 / 03期

关键词：

D O I：

10.1016/0550-3213(94)90514-2

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We compute the effect of small-size instanton corrections to current-current correlators, for all combinations of axial, vector, and possibly flavour non-diagonal currents. We apply our result to the hadronic decays of the tau lepton, in order to assess the reliability of the determination of alpha(s) from the tau hadronic width.

引用

收藏

页码：518 / 529

页数：12

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